http 500 internal server error
tiki 8.1
phpmyadmin 3.52
mysql 5.1.57
windows server 2008 r2
IIs 7.0
I have 2 instances of wiki installed on the same physical server - both work and report no events. The first instance allows logins of both admin and users with no issues.
The second allows a login of admin - all content is fully available; but when i login as a registered user, i get past the username and password dialogue and then it presents a http 500 internal server error page.
I have tried everything - permissions etc are the same between the 2 instances, the versioning is the same. As the 2nd instance works in admin login and not in any user login that points to permissions. It did work up until recently, nothing changed on the server and no modifications were made to the wiki.
Can anyone help me with this?